3 years ago

What is the angle of A and B?

Mathematics

1 answer:

Archy [21]3 years ago

5 0

Answer:

a=90

b=30

Step-by-step explanation:

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Simplify (2x + 3)(x – 4) = ?

Lina20 [59]

Use the FOIL method (first, outside, inside, last) to multiply:

2x^2-8x+3x-12

This can be simplified even more into:

2x^2-5x-12.

Hope this helped!

5 0

3 years ago

Mr. Litterski creates a ball from rubber bands.

kupik [55]

Answer:

The surface area of the ball is of 29 square inches.

The volume of the ball is of 15 cubic inches.

Step-by-step explanation:

The ball has an spherical format:

Circumference of a sphere:

The circumference of a sphere is 6.2832 times the radius.

Surface area

$A = 4\pi r$

In which r is the radius.

Volume:

$V = \frac{4\pi r^3}{3}$

The circumference of the ball is 9.4 inches.

So the radius is:

$6.2832r = 9.4$

$r = \frac{9.4}{6.2832} = 1.53$

Surface area

$A = 4\pi(1.53)^2 = 29.3$

Rounding to the nearest unit, the surface area of the ball is of 29 square inches.

Volume:

$V = \frac{4\pi (1.53)^3}{3} = 14.9$

Rounding to the nearest unit, the volume of the ball is of 15 cubic inches.

8 0

3 years ago

SOLVE FOR X PLS. X = (1,600ft)² + (3,000ft)²

34kurt

Answer:

11,560,000

Step-by-step explanation:

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3 years ago

Question is in picture (9th grade algebra 1)

LiRa [457]

Answer:

wouldnt it be 2.05

Step-by-step explanation:

4 0

3 years ago

Find the missing dimension of each prism the volume equals 60 in.³ width equals 2.5 in. length equals 4 in. FIRST CORRECT

Tanya [424]

Answer:

Missing dimension is 6

Step-by-step explanation:

2.5 times 4 is 10, to get to 60, your missing 6, 60/10=6

4 0

3 years ago